Miller Electric OM-1313 manual Table of Contents

WARNING

This product, when used for welding or cutting, produces fumes or gases which contain chemicals known to the State of California to cause birth defects and, in some cases, cancer. (California Health & Safety Code Section 25249.5 et seq.)

The following terms are used interchangeably throughout this manual:

MIG = GMAW

OM1313

TABLE OF CONTENTS

SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING		1
1-1.	Symbol Usage	1
1-2.	Arc Welding Hazards	1
1-3. Additional Symbols For Installation, Operation, And Maintenance		3
1-4.	Principal Safety Standards	3
1-5.	EMF Information	4

SECTION 2 – INSTALLATION			5
2-1.		Specifications	5
2-2.		Volt-Ampere Curves	5
2-3. Welding Power Source Duty Cycle And Overheating			6
2-4.	Welding Gun Duty Cycle And Overheating		6
2-5.		Installing Work Clamp	7
2-6.		Installing Gas Supply	7
2-7.		Installing Welding Gun	8
2-8.		Setting Gun Polarity	8
2-9.		Installing Wire Spool And Adjusting Hub Tension	9
2-10.		Changing Input Voltage	9
2-11.		Electrical Service Guide	10
2-12.		Selecting A Location And Connecting Input Power	10
2-13.		Threading Welding Wire	11

SECTION 3 – OPERATION		13
3-1.	Front Panel Controls	13
3-2.	Weld Parameter Chart	14
SECTION 4 – MAINTENANCE & TROUBLESHOOTING		16
4-1.	Routine Maintenance	16
4-2. Circuit Breakers CB1 And CB2		16
4-3.	Changing Drive Roll And Inlet Wire Guide	16
4-4.	Cleaning Or Replacing Gun Liner	17
4-5.	Replacing Switch And/Or Head Tube	18
4-6.	Replacing Gun Contact Tip	19
4-7.	Troubleshooting	19
SECTION 5 – ELECTRICAL DIAGRAM		20
SECTION 6 – MIG WELDING (GMAW) GUIDELINES		21
6-1. Typical MIG Process Connections		21
6-2. Typical MIG Process Control Settings		22
6-3.	Holding And Positioning Welding Gun	23
6-4.	Conditions That Affect Weld Bead Shape	24
6-5.	Gun Movement During Welding	25
6-6.	Poor Weld Bead Characteristics	25
6-7.	Good Weld Bead Characteristics	25
6-8.	Troubleshooting – Excessive Spatter	26
6-9.	Troubleshooting – Porosity	26
6-10. Troubleshooting – Excessive Penetration		26
6-11.	Troubleshooting – Lack Of Penetration	27
6-12.	Troubleshooting – Incomplete Fusion	27
6-13.	Troubleshooting – Burn-Through	27
6-14.	Troubleshooting – Waviness Of Bead	28
6-15.	Troubleshooting – Distortion	28
6-16.	Common MIG Shielding Gases	29
6-17.	Troubleshooting Guide For Semiautomatic Welding Equipment	29
SECTION 7 – PARTS LIST		32
OPTIONS AND ACCESSORIES
WARRANTY